Results 11 to 20 of about 851,487 (265)

Energía, recursos naturales, residuos [PDF]

open access: yes, 2010
Comunicació presentada al I Congrés Obert i Virtual Castelló2020. Castelló, 1-2 març, 2010 En esta comunicación pretendo, en el marco de los próximos 10 años, aportar una serie de planteamientos desde el punto de vista de la “ecolomía” o de la “econogía” para, dentro de una visión de medio y largo plazo poder realizar pequeños cambios que se pueden ir ...
García García, Carmelo
openaire   +2 more sources

Temporal and spatial expression of genes involved in DNA methylation during reproductive development of sexual and apomictic Eragrostis curvula [PDF]

open access: yes, 2017
Recent reports in model plant species have highlighted a role for DNA methylation pathways in the regulation of the somatic-to-reproductive transition in the ovule, suggesting that apomixis (asexual reproduction through seeds) likely relies on RdDM ...
Echenique, Carmen Viviana   +9 more
core   +1 more source

Analytical Pyrolysis of the Fungal Melanins from Ochroconis spp. Isolated from Lascaux Cave, France

open access: yesApplied Sciences, 2021
Analytical pyrolysis is a tool widely used for investigating the nature of macromolecules. This technique has been applied with success for solving the chemical structure of geo- and biopolymers.
Cesareo Saiz-Jimenez   +3 more
doaj   +1 more source

Inheritance of disc flower color in Helianthus petiolaris [PDF]

open access: yes, 2009
Disc flowers of Helianthus petiolaris (Asteraceae) are usually purple reddue to anthocyanin pigments in corolla lobes, style and stigma. However, yellow-flowered plants are occasionally found.
Delucchi, C.   +2 more
core   +1 more source

Influence of ENSO and the urban heat island on climate variation in a growing city of the western Mexico [PDF]

open access: yesOne Ecosystem
To understand climate change in the local context, it is necessary to analyse three factors in the territories; 1) how temperature and precipitation have varied over time, 2) if there is an association with the natural variation of the planet, for ...
Oyolsi Nájera González   +3 more
doaj   +3 more sources

The Lomagundi-Jatuli carbon isotopic event recorded in the marble of the Tandilia System basement, Río de la Plata Craton, Argentina [PDF]

open access: yes, 2019
The “Lomagundi-Jatuli event” corresponds to the most important δ13C positive anomaly (≥5‰) globally reported in Palaeoproterozoic marine carbonates (between ∼2.30 and 2.06 Ga).
Ballivian Justiniano, Carlos Alberto   +6 more
core   +1 more source

Respuesta fisiológica del frijol Phaseolus vulgaris L. a la sequía, en un sistema de raíz dividida.

open access: yesAgronomía Mesoamericana, 2015
El objetivo de este trabajo fue estudiar en frijol la regulación de la apertura estomática y si ésta es el resultado de una disminución en el potencial de agua en la parte aérea o de un factor químico producido en la raíz.
J. F. Aguirre   +3 more
doaj   +1 more source

¿Recursos naturales o bienes comunes naturales?:

open access: yesPapeles de Trabajo. Centro de Estudios Interdisciplinarios en Etnolingüística y Antropología Socio-Cultural, 2020
En el presente trabajo nos proponemos poner de manifiesto que el término recurso natural, como cualquier producto ideológico, refracta y refleja una realidad que se encuentra más allá de su materialidad. El proceso histórico de generalización de la racionalidad instrumental implicó un cambio radical en las relaciones sociedad-naturaleza.
openaire   +3 more sources

De novo transcriptome sequencing and SSR markers development for Cedrela balansae C. DC., a native tree species of northwest Argentina [PDF]

open access: yes, 2018
The endangered Cedrela balansae C.DC. (Meliaceae) is a high-value timber species with great potential for forest plantations that inhabits the tropical forests in Northwestern Argentina.
Acuña, Cintia Vanesa   +11 more
core   +2 more sources

Post-embryonic development and life table parameters of Neoseiulus californicus on Tetranychus desertorum and Panonychus citri (Acari: Phytoseiidae, Tetranychidae) under laboratory conditions

open access: yesGayana, 2020
The postembryonic development, and life table parameters of the Neoseiulus californicus were studied under laboratory conditions in order to evaluate the potentiality of this depredator for feeding on two phytophages mites Tetranychus desertorum (desert
Víctor Tello Mercado   +2 more
doaj   +1 more source

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